Abstract
Abstract In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment, the peels were mixed with cattle dung (D) in different proportions and applied at rates up to 200 metric tons/ha to 4 kg of potted soil. Nitrogen, P, K, and Mg fertilizers (F) were added as a variable. The higher the rate of the CP + D mixture and the more the proportion of D in the mixture, the greater the yield for the first crop except that CP + D + F treatments did not increase yield when applied at > 150 metric tons/ha. Mixtures without F containing 50% CP or above, and CP with F at and above 100 metric tons/ha, gave higher yields with the second cropping. This suggests that preplant incubation beyond the 3 weeks used was desirable to obtain greater N mineralization during the first cropping. Over the two cropping periods, increasing rates of CP increased yields from 29% to 244% of the control, thus showing the value of CP as a soil amendment. Moreover, CP + F was generally as effective as CP + D and D + F combinations. This obviates the necessity for D which is relatively scarce in West Africa. The CP + D mixtures enhanced fertilizer efficiency with the first cropping.
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Claims 8
Claim · model-written summary
Increasing rates of cassava peels increased corn yields from 29% to 244% of the control over two cropping periods.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- increasing rates of CPe2
- Outcome
- yieldse2
- Direction
- increasede2
- Value
- from 29% to 244%e2
- Comparator
- controle2
- Setting
- greenhousee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e2“Over the two cropping periods, increasing rates of CP increased yields from 29% to 244% of the control”
Claim · model-written summary
Mixtures without fertilizer containing 50% CP or above gave higher corn yields in the second cropping.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- Mixtures without F containing 50% CP or abovee3
- Outcome
- yieldse3
- Direction
- highere3
- Qualifier
- with the second croppinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e3“Mixtures without F containing 50% CP or above, and CP with F at and above 100 metric tons/ha, gave higher yields with the second cropping”
Claim · model-written summary
CP with F at and above 100 metric tons/ha gave higher corn yields in the second cropping.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- CP with F at and above 100 metric tons/hae3
- Outcome
- yieldse3
- Direction
- highere3
- Qualifier
- with the second croppinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e3“Mixtures without F containing 50% CP or above, and CP with F at and above 100 metric tons/ha, gave higher yields with the second cropping”
Claim · model-written summary
The authors suggest that preplant incubation beyond 3 weeks is desirable to obtain greater N mineralization during the first corn cropping.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- preplant incubation beyond the 3 weeks usede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e4“preplant incubation beyond the 3 weeks used was desirable to obtain greater N mineralization during the first cropping”
Claim · model-written summary
CP + F was generally as effective as the CP + D and D + F combinations.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- CP + Fe5
- Outcome
- effectivee5
- Direction
- generally as effective ase5
- Comparator
- CP + D and D + F combinationse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e5“CP + F was generally as effective as CP + D and D + F combinations”
Claim · model-written summary
CP + D mixtures enhanced fertilizer efficiency in the first corn cropping.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- CP + D mixturese6
- Outcome
- fertilizer efficiencye6
- Direction
- enhancede6
- Qualifier
- with the first croppinge6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e6“The CP + D mixtures enhanced fertilizer efficiency with the first cropping”
Claim · model-written summary
The higher the rate of the CP + D mixture, the greater the corn yield in the first crop, and more dung in the mixture increased this relation.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- rate of the CP + D mixturee7
- Outcome
- yield for the first crope7
- Direction
- greatere7
- Qualifier
- the more the proportion of D in the mixturee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e7“The higher the rate of the CP + D mixture and the more the proportion of D in the mixture, the greater the yield for the first crop except that CP + D + F treatments did not increase yield when applied at > 150 metric tons/ha”
Claim · model-written summary
CP + D + F treatments applied above 150 metric tons/ha did not increase corn yield.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- CP + D + F treatmentse7
- Outcome
- yielde7
- Direction
- did not increasee7
- Qualifier
- when applied at > 150 metric tons/hae7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a greenhouse study on corn ( Zea mays L.) to assess the potentials of cassava peels (CP) as a soil amendment”
e7“The higher the rate of the CP + D mixture and the more the proportion of D in the mixture, the greater the yield for the first crop except that CP + D + F treatments did not increase yield when applied at > 150 metric tons/ha”
The same questions in other papers
Manihot esculenta · yield · Zea mays (maize)Positive and negative results
3 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
5 papers more in this group
See all 9 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.